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Commit | Line | Data |
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b2dad0e3 BK |
1 | dnl |
2 | dnl Initialize configure bits. | |
3 | dnl | |
4 | dnl Define OPTLEVEL='-O2' if new inlining code present. | |
5 | dnl | |
6 | dnl GLIBCPP_CONFIGURE | |
7 | AC_DEFUN(GLIBCPP_CONFIGURE, [ | |
8 | dnl Default to --enable-multilib | |
9 | AC_ARG_ENABLE(multilib, | |
10 | [ --enable-multilib build hella library versions (default)], | |
11 | [case "${enableval}" in | |
12 | yes) multilib=yes ;; | |
13 | no) multilib=no ;; | |
14 | *) AC_MSG_ERROR(bad value ${enableval} for multilib option) ;; | |
15 | esac], [multilib=yes])dnl | |
16 | ||
17 | dnl We may get other options which we dont document: | |
18 | dnl --with-target-subdir, --with-multisrctop, --with-multisubdir | |
19 | if test "[$]{srcdir}" = "."; then | |
20 | if test "[$]{with_target_subdir}" != "."; then | |
21 | glibcpp_basedir="[$]{srcdir}/[$]{with_multisrctop}../$1" | |
22 | else | |
23 | glibcpp_basedir="[$]{srcdir}/[$]{with_multisrctop}$1" | |
24 | fi | |
25 | else | |
26 | glibcpp_basedir="[$]{srcdir}/$1" | |
27 | fi | |
28 | AC_SUBST(glibcpp_basedir) | |
29 | ||
30 | AC_CANONICAL_HOST | |
31 | ||
32 | AM_INIT_AUTOMAKE(libstdc++, 2.90.8) | |
33 | ||
34 | # FIXME: We temporarily define our own version of AC_PROG_CC. This is | |
35 | # copied from autoconf 2.12, but does not call AC_PROG_CC_WORKS. We | |
36 | # are probably using a cross compiler, which will not be able to fully | |
37 | # link an executable. This should really be fixed in autoconf | |
38 | # itself. | |
39 | ||
40 | AC_DEFUN(LIB_AC_PROG_CC, | |
41 | [AC_BEFORE([$0], [AC_PROG_CPP])dnl | |
42 | dnl Fool anybody using AC_PROG_CC. | |
43 | AC_PROVIDE([AC_PROG_CC]) | |
44 | AC_CHECK_PROG(CC, gcc, gcc) | |
45 | if test -z "$CC"; then | |
46 | AC_CHECK_PROG(CC, cc, cc, , , /usr/ucb/cc) | |
47 | test -z "$CC" && AC_MSG_ERROR([no acceptable cc found in \$PATH]) | |
48 | fi | |
49 | ||
50 | AC_PROG_CC_GNU | |
51 | ||
52 | if test $ac_cv_prog_gcc = yes; then | |
53 | GCC=yes | |
54 | dnl Check whether -g works, even if CFLAGS is set, in case the package | |
55 | dnl plays around with CFLAGS (such as to build both debugging and | |
56 | dnl normal versions of a library), tasteless as that idea is. | |
57 | ac_test_CFLAGS="${CFLAGS+set}" | |
58 | ac_save_CFLAGS="$CFLAGS" | |
59 | CFLAGS= | |
60 | AC_PROG_CC_G | |
61 | if test "$ac_test_CFLAGS" = set; then | |
62 | CFLAGS="$ac_save_CFLAGS" | |
63 | elif test $ac_cv_prog_cc_g = yes; then | |
64 | CFLAGS="-g -O2" | |
65 | else | |
66 | CFLAGS="-O2" | |
67 | fi | |
68 | else | |
69 | GCC= | |
70 | test "${CFLAGS+set}" = set || CFLAGS="-g" | |
71 | fi | |
72 | ]) | |
73 | ||
74 | LIB_AC_PROG_CC | |
75 | ||
76 | # Likewise for AC_PROG_CXX. | |
77 | AC_DEFUN(LIB_AC_PROG_CXX, | |
78 | [AC_BEFORE([$0], [AC_PROG_CXXCPP])dnl | |
79 | dnl Fool anybody using AC_PROG_CXX. | |
80 | AC_PROVIDE([AC_PROG_CXX]) | |
81 | AC_CHECK_PROGS(CXX, $CCC c++ g++ gcc CC cxx cc++, gcc) | |
82 | test -z "$CXX" && AC_MSG_ERROR([no acceptable c++ found in \$PATH]) | |
83 | ||
84 | AC_PROG_CXX_GNU | |
85 | ||
86 | if test $ac_cv_prog_gxx = yes; then | |
87 | GXX=yes | |
88 | dnl Check whether -g works, even if CXXFLAGS is set, in case the package | |
89 | dnl plays around with CXXFLAGS (such as to build both debugging and | |
90 | dnl normal versions of a library), tasteless as that idea is. | |
91 | ac_test_CXXFLAGS="${CXXFLAGS+set}" | |
92 | ac_save_CXXFLAGS="$CXXFLAGS" | |
93 | CXXFLAGS= | |
94 | AC_PROG_CXX_G | |
95 | if test "$ac_test_CXXFLAGS" = set; then | |
96 | CXXFLAGS="$ac_save_CXXFLAGS" | |
97 | elif test $ac_cv_prog_cxx_g = yes; then | |
98 | CXXFLAGS="-g -O2" | |
99 | else | |
100 | CXXFLAGS="-O2" | |
101 | fi | |
102 | else | |
103 | GXX= | |
104 | test "${CXXFLAGS+set}" = set || CXXFLAGS="-g" | |
105 | fi | |
106 | ]) | |
107 | ||
108 | LIB_AC_PROG_CXX | |
109 | ||
110 | # AC_CHECK_TOOL does AC_REQUIRE (AC_CANONICAL_BUILD). If we dont | |
111 | # run it explicitly here, it will be run implicitly before | |
112 | # LIBGCJ_CONFIGURE, which doesn't work because that means that it will | |
113 | # be run before AC_CANONICAL_HOST. | |
114 | AC_CANONICAL_BUILD | |
115 | ||
116 | AC_CHECK_TOOL(AS, as) | |
117 | AC_CHECK_TOOL(AR, ar) | |
118 | AC_CHECK_TOOL(RANLIB, ranlib, :) | |
119 | ||
120 | AC_PROG_INSTALL | |
121 | ||
122 | AM_MAINTAINER_MODE | |
123 | ||
124 | # We need AC_EXEEXT to keep automake happy in cygnus mode. However, | |
125 | # at least currently, we never actually build a program, so we never | |
126 | # need to use $(EXEEXT). Moreover, the test for EXEEXT normally | |
127 | # fails, because we are probably configuring with a cross compiler | |
128 | # which cant create executables. So we include AC_EXEEXT to keep | |
129 | # automake happy, but we dont execute it, since we dont care about | |
130 | # the result. | |
131 | if false; then | |
132 | AC_EXEEXT | |
133 | fi | |
134 | ||
135 | # configure.host sets the following important variables | |
136 | # glibcpp_cflags - host specific C compiler flags | |
137 | # glibcpp_cxxflags - host specific C++ compiler flags | |
138 | ||
139 | glibcpp_cflags= | |
140 | glibcpp_cxxflags= | |
141 | ||
142 | . [$]{glibcpp_basedir}/configure.host | |
143 | ||
144 | case [$]{glibcpp_basedir} in | |
145 | /* | [A-Za-z]:[/\\]*) libgcj_flagbasedir=[$]{glibcpp_basedir} ;; | |
146 | *) glibcpp_flagbasedir='[$](top_builddir)/'[$]{glibcpp_basedir} ;; | |
147 | esac | |
148 | ||
149 | GLIBCPP_CFLAGS="[$]{glibcpp_cflags}" | |
150 | GLIBCPP_CXXFLAGS="[$]{glibcpp_cxxflags}" | |
151 | AC_SUBST(GLIBCPP_CFLAGS) | |
152 | AC_SUBST(GLIBCPP_CXXFLAGS) | |
153 | ]) | |
154 | ||
155 | ||
156 | dnl | |
157 | dnl Check to see if g++ can compile this library. | |
158 | dnl | |
159 | dnl Define OPTLEVEL='-O2' if new inlining code present. | |
160 | dnl | |
161 | dnl GLIBCPP_CHECK_COMPILER_VERSION | |
162 | AC_DEFUN(GLIBCPP_CHECK_COMPILER_VERSION, [ | |
163 | AC_MSG_CHECKING([for g++ that will successfullly compile this code]) | |
164 | AC_EGREP_CPP([ok], [ | |
165 | #if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 95) | |
166 | ok | |
167 | #endif | |
168 | ], gpp_satisfactory=yes, AC_MSG_ERROR("please upgrade to gcc-2.95 or above")) | |
169 | AC_MSG_RESULT($gpp_satisfactory) | |
170 | ||
171 | AC_MSG_CHECKING([for g++ that supports new inlining mechanism]) | |
172 | AC_EGREP_CPP([ok], [ | |
173 | #if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ > 95) | |
174 | ok | |
175 | #endif | |
176 | ], [OPTLEVEL='-O2' | |
177 | WERRORSUPPRESS= | |
178 | ], [OPTLEVEL= | |
179 | WERRORSUPPRESS=-Wno-error | |
180 | ]) | |
181 | if test "$OPTLEVEL" = ""; then | |
182 | AC_MSG_RESULT(no) | |
183 | else | |
184 | AC_MSG_RESULT(yes) | |
185 | fi | |
186 | AC_SUBST(OPTLEVEL) | |
187 | AC_SUBST(WERRORSUPPRESS) | |
188 | ]) | |
189 | ||
190 | ||
191 | dnl | |
192 | dnl Check to see what builtin math functions are supported | |
193 | dnl | |
194 | dnl Define _GLIBCPP_HAS_BUILTIN_SINF if __builtin_sinf | |
195 | dnl Define _GLIBCPP_HAS_BUILTIN_COSF if __builtin_cosf | |
196 | dnl Define _GLIBCPP_HAS_BUILTIN_FABSF if __builtin_fabsf | |
197 | dnl Define _GLIBCPP_HAS_BUILTIN_SQRTF if __builtin_sqrtf | |
198 | dnl | |
199 | dnl GLIBCPP_CHECK_BUILTIN_MATH_SUPPORT | |
200 | AC_DEFUN(GLIBCPP_CHECK_BUILTIN_MATH_SUPPORT, [ | |
201 | dnl Test for builtin math functions. | |
202 | AC_MSG_CHECKING([for __builtin_sinf]) | |
203 | AC_TRY_COMPILE([#include <math.h>], | |
204 | [float foo(void) { __builtin_sinf(0.0); }], | |
205 | use_builtin_sinf=yes, use_builtin_sinf=no) | |
206 | AC_MSG_RESULT($use_builtin_sinf) | |
207 | if test $use_builtin_sinf = "yes"; then | |
208 | AC_DEFINE(_GLIBCPP_HAS_BUILTIN_SINF) | |
209 | fi | |
210 | ||
211 | AC_MSG_CHECKING([for __builtin_cosf]) | |
212 | AC_TRY_COMPILE([#include <math.h>], | |
213 | [float foo(void) { __builtin_cosf(0.0); }], | |
214 | use_builtin_cosf=yes, use_builtin_cosf=no) | |
215 | AC_MSG_RESULT($use_builtin_cosf) | |
216 | if test $use_builtin_cosf = "yes"; then | |
217 | AC_DEFINE(_GLIBCPP_HAS_BUILTIN_COSF) | |
218 | fi | |
219 | ||
220 | AC_MSG_CHECKING([for __builtin_fabsf]) | |
221 | AC_TRY_COMPILE([#include <math.h>], | |
222 | [float foo(void) { __builtin_fabsf(0.0); }], | |
223 | use_builtin_fabsf=yes, use_builtin_fabsf=no) | |
224 | AC_MSG_RESULT($use_builtin_fabsf) | |
225 | if test $use_builtin_fabsf = "yes"; then | |
226 | AC_DEFINE(_GLIBCPP_HAS_BUILTIN_FABSF) | |
227 | fi | |
228 | ||
229 | AC_MSG_CHECKING([for __builtin_sqrtf]) | |
230 | AC_TRY_COMPILE([#include <math.h>], | |
231 | [float foo(void) { __builtin_sqrtf(0.0); }], | |
232 | use_builtin_sqrtf=yes, use_builtin_sqrtf=no) | |
233 | AC_MSG_RESULT($use_builtin_sqrtf) | |
234 | if test $use_builtin_sqrtf = "yes"; then | |
235 | AC_DEFINE(_GLIBCPP_HAS_BUILTIN_SQRTF) | |
236 | fi | |
237 | ]) | |
238 | ||
239 | ||
240 | dnl | |
cde28f0d | 241 | |
b2dad0e3 BK |
242 | dnl Check to see what architecture we are compiling for. If it's |
243 | dnl supported, use special hand-crafted routines to provide thread | |
cde28f0d BK |
244 | dnl primitives. Also, if architecture-specific flags are required for |
245 | dnl compilation, add them here. | |
b2dad0e3 | 246 | dnl |
f3b004d8 BK |
247 | dnl Depending on what is found, select configure/cpu/*/bits/atomicity.h |
248 | dnl If not found, select configure/cpu/generic/bits/atomicity.h | |
b2dad0e3 BK |
249 | dnl |
250 | dnl GLIBCPP_CHECK_CPU | |
251 | AC_DEFUN(GLIBCPP_CHECK_CPU, [ | |
252 | AC_MSG_CHECKING([for cpu primitives directory]) | |
cde28f0d | 253 | CPUFLAGS= |
b2dad0e3 BK |
254 | case "$target_cpu" in |
255 | alpha*) | |
256 | cpu_include_dir="config/cpu/alpha" | |
257 | ;; | |
258 | arm*) | |
259 | cpu_include_dir="config/cpu/arm" | |
260 | ;; | |
261 | i486 | i586 | i686 | i786) | |
262 | cpu_include_dir="config/cpu/i386" | |
263 | ;; | |
264 | powerpc | rs6000) | |
265 | cpu_include_dir="config/cpu/powerpc" | |
7b267e3e | 266 | CPUFLAGS='-mcpu=powerpc' |
b2dad0e3 BK |
267 | ;; |
268 | sparc64 | ultrasparc) | |
269 | cpu_include_dir="config/cpu/sparc/sparc64" | |
270 | ;; | |
271 | sparc*) | |
272 | cpu_include_dir="config/cpu/sparc/sparc32" | |
273 | ;; | |
274 | *) | |
275 | cpu_include_dir="config/cpu/generic" | |
276 | ;; | |
277 | esac | |
278 | AC_MSG_RESULT($cpu_include_dir) | |
279 | AC_SUBST(cpu_include_dir) | |
cde28f0d | 280 | AC_SUBST(CPUFLAGS) |
b2dad0e3 BK |
281 | ]) |
282 | ||
283 | ||
284 | dnl | |
285 | dnl Check to see what the underlying c library's interface to ctype looks | |
286 | dnl like. Bits of locale rely on things like isspace, toupper, etc. This | |
287 | dnl stuff makes sure the right bits from the clibrary get called. | |
288 | dnl | |
289 | dnl Depending on what is found, select various configure/*/bits/ctype_base.h | |
290 | dnl Depending on what is found, select various configure/*/ctype.cc | |
291 | dnl | |
292 | dnl GLIBCPP_CHECK_CTYPE | |
293 | AC_DEFUN(GLIBCPP_CHECK_CTYPE, [ | |
294 | AC_CHECK_HEADER(ctype.h, [ | |
295 | ||
296 | dnl If doesn't match any specified, go with defaults. | |
297 | ctype_default=yes | |
298 | ||
299 | dnl Test for <ctype> functionality -- gnu-linux | |
8445e42a | 300 | AC_MSG_CHECKING([<ctype> for gnu-linux ]) |
b2dad0e3 BK |
301 | AC_TRY_COMPILE([#include <ctype.h>], |
302 | [int | |
303 | foo (int a) | |
304 | { return _ISspace + _ISprint + _IScntrl + _ISupper + _ISlower + _ISalpha \ | |
305 | + _ISdigit + _ISpunct + _ISxdigit + _ISalnum + _ISgraph \ | |
306 | + __ctype_tolower[a] + __ctype_toupper[a] + __ctype_b[a];}], \ | |
307 | ctype_linux=yes, ctype_linux=no) | |
308 | AC_MSG_RESULT($ctype_linux) | |
309 | if test $ctype_linux = "yes"; then | |
310 | ctype_include_dir="config/gnu-linux" | |
311 | ctype_default=no | |
312 | fi | |
313 | ||
7b267e3e BK |
314 | dnl Test for <ctype> functionality -- BSD |
315 | AC_MSG_CHECKING([<ctype> for bsd ]) | |
316 | AC_TRY_COMPILE([#include <ctype.h>], | |
317 | [int | |
318 | foo (int a) | |
319 | { return _CTYPE_S + _CTYPE_R + _CTYPE_C + _CTYPE_U + _CTYPE_L + _CTYPE_A \ | |
320 | + _CTYPE_D + _CTYPE_P + _CTYPE_X + _CTYPE_G ;}], \ | |
321 | ctype_bsd=yes, ctype_bsd=no) | |
322 | AC_MSG_RESULT($ctype_bsd) | |
323 | if test $ctype_bsd = "yes"; then | |
324 | ctype_include_dir="config/bsd" | |
325 | ctype_default=no | |
326 | fi | |
327 | ||
b2dad0e3 BK |
328 | dnl Test for <ctype> functionality -- solaris 2.6 and 2.7 |
329 | if test $ctype_default = "yes"; then | |
8445e42a | 330 | AC_MSG_CHECKING([<ctype> for solaris 2.[6,7,8] ]) |
b2dad0e3 BK |
331 | AC_TRY_COMPILE([#include <ctype.h>], |
332 | [int | |
333 | foo (int a) | |
334 | { return _ISSPACE + _ISPRINT + _ISCNTRL + _ISUPPER + _ISLOWER + _ISALPHA \ | |
335 | + _ISDIGIT + _ISPUNCT + _ISXDIGIT + _ISALNUM + _ISGRAPH \ | |
336 | + __trans_lower[a] + __trans_upper[a] + __ctype_mask[a];}], \ | |
337 | ctype_solaris=yes, ctype_solaris=no) | |
338 | AC_MSG_RESULT($ctype_solaris) | |
339 | ||
340 | if test $ctype_solaris = "yes"; then | |
341 | AC_MSG_CHECKING([ for version]) | |
342 | AC_LANG_CPLUSPLUS | |
343 | AC_TRY_COMPILE([#include <ctype.h>], | |
344 | [typedef long* __to_type; __to_type const& _M_toupper = __trans_upper;],\ | |
345 | ctype_solaris26=yes, ctype_solaris26=no) | |
346 | AC_LANG_C | |
347 | if test $ctype_solaris26 = "yes"; then | |
348 | ctype_include_dir="config/solaris/solaris2.6" | |
349 | AC_MSG_RESULT("solaris2.6") | |
350 | ctype_default=no | |
351 | else | |
352 | ctype_include_dir="config/solaris/solaris2.7" | |
8445e42a | 353 | AC_MSG_RESULT("solaris2.[6,7]") |
b2dad0e3 BK |
354 | ctype_default=no |
355 | fi | |
356 | fi | |
357 | fi | |
358 | ||
359 | dnl Test for <ctype> functionality -- solaris 2.5.1 | |
360 | if test $ctype_default = "yes"; then | |
8445e42a | 361 | AC_MSG_CHECKING([<ctype> for solaris 2.5.1 ]) |
b2dad0e3 BK |
362 | AC_TRY_COMPILE([#include <ctype.h>], |
363 | [int | |
364 | foo (int a) | |
365 | { return _U + _L + _N + _S + _P + _C + _X + _B \ | |
366 | + __ctype[a];}], \ | |
367 | ctype_solaris25=yes, ctype_solaris25=no) | |
368 | AC_MSG_RESULT($ctype_solaris25) | |
369 | if test $ctype_solaris25 = "yes"; then | |
370 | ctype_include_dir="config/solaris/solaris2.5" | |
371 | ctype_default=no | |
372 | fi | |
373 | fi | |
374 | ||
375 | dnl Test for <ctype> functionality -- aix | |
376 | if test $ctype_default = "yes"; then | |
8445e42a | 377 | AC_MSG_CHECKING([<ctype> for aix ]) |
b2dad0e3 BK |
378 | AC_TRY_COMPILE([#include <ctype.h>], |
379 | [int | |
380 | foo (int a) | |
381 | { return _ISSPACE + _ISPRINT + _ISCNTRL + _ISUPPER + _ISLOWER + _ISALPHA \ | |
382 | + _ISDIGIT + _ISPUNCT + _ISXDIGIT + _ISALNUM + _ISGRAPH \ | |
383 | + _VALC('a') + _IS('c', 0);}], \ | |
384 | ctype_aix=yes, ctype_aix=no) | |
385 | AC_MSG_RESULT($ctype_aix) | |
386 | if test $ctype_aix = "yes"; then | |
387 | ctype_include_dir="config/aix" | |
388 | ctype_default=no | |
389 | fi | |
390 | fi | |
391 | ||
392 | dnl Test for <ctype> functionality -- newlib | |
393 | if test $ctype_default = "yes"; then | |
8445e42a | 394 | AC_MSG_CHECKING([<ctype> for newlib ]) |
b2dad0e3 BK |
395 | AC_TRY_COMPILE([#include <ctype.h>], |
396 | [int | |
397 | foo (int a) | |
398 | { return _U + _L + _N + _S + _P + _C + _X + _B \ | |
399 | + _ctype_[a];}], \ | |
400 | ctype_newlib=yes, ctype_newlib=no) | |
401 | AC_MSG_RESULT($ctype_newlib) | |
402 | if test $ctype_newlib = "yes"; then | |
403 | ctype_include_dir="config/newlib" | |
404 | ctype_default=no | |
405 | fi | |
406 | fi | |
407 | ||
408 | if test $ctype_default = "yes"; then | |
409 | ctype_include_dir="config/generic" | |
410 | AC_MSG_WARN("Using default ctype headers.") | |
411 | fi | |
412 | AC_SUBST(ctype_include_dir) | |
413 | ]) | |
414 | ]) | |
415 | ||
416 | ||
417 | dnl | |
418 | dnl Check to see what the underlying c library or math library is like. | |
419 | dnl | |
420 | dnl Define HAVE_CARGF etc if "cargf" is found. | |
421 | dnl | |
422 | dnl GLIBCPP_CHECK_MATH_SUPPORT | |
423 | AC_DEFUN(GLIBCPP_CHECK_MATH_SUPPORT, [ | |
424 | AC_CHECK_LIB(m, sin, libm="-lm") | |
425 | save_LIBS="$LIBS" | |
426 | LIBS="$LIBS $libm" | |
427 | ||
428 | dnl Check for complex versions of math functions of platform. | |
429 | AC_CHECK_HEADERS([complex.h]) | |
430 | AC_REPLACE_MATHFUNCS(ccos ccosf ccosh ccoshf cexp cexpf c_log c_logf \ | |
431 | clog10 clog10f cpow cpowf csin csinf csinh csinhf csqrt csqrtf \ | |
432 | ctan ctanf ctanh ctanhf \ | |
433 | carg cargf nan hypot hypotf atan2f expf copysignf) | |
434 | ||
435 | dnl We compile the long double complex functions only if the function | |
f3b004d8 | 436 | dnl provides the non-complex long double functions. |
b2dad0e3 | 437 | USE_LONG_DOUBLE=no |
f3b004d8 | 438 | AC_CHECK_FUNC(copysignl, |
b2dad0e3 BK |
439 | USE_LONG_DOUBLE=yes |
440 | AC_REPLACE_MATHFUNCS(ccoshl ccosl cexpl cpowl csinhl csinl \ | |
441 | csqrtl ctanhl ctanl cargl hypotl signbitl c_logl clog10l)) | |
442 | AC_SUBST(USE_LONG_DOUBLE) | |
443 | ||
444 | dnl Check to see if basic C math functions have faster float versions. | |
445 | AC_CHECK_FUNCS(modf isnan isnanf isnanl isinf isinff isinfl copysign \ | |
446 | copysignl cosf coshf logf log10f powf sinf sinhf sqrtf tanf tanhf \ | |
447 | strtof strtold fabsf sincos sincosf sincosl finite finite fqfinite \ | |
448 | fpclass qfpclass) | |
449 | ||
450 | #Some runtimes have these functions with a preceding underscore. Please | |
451 | # keep this sync'd with the one above. And if you add any new symbol, | |
452 | # please add the corresponding block in the @BOTTOM@ section of | |
453 | # acconfig.h. | |
454 | AC_CHECK_FUNCS(_modf _isnan _isnanf _isnanl _isinf _isinff _isinfl _copysign \ | |
455 | _copysignl _cosf _coshf _logf _log10f _powf _sinf _sinhf _sqrtf _tanf _tanhf \ | |
456 | _strtof _strtold _fabsf _sincos _sincosf _sincosl _finite _finitef _qfinite \ | |
457 | _fpclass _qfpclass) | |
458 | ||
459 | LIBS="$save_LIBS" | |
460 | ]) | |
461 | ||
462 | ||
463 | dnl | |
464 | dnl Check to see if this target can enable the wchar_t parts of libstdc++. | |
465 | dnl | |
466 | dnl Define _GLIBCPP_USE_WCHAR_T if all the bits are found | |
467 | dnl Define _GLIBCPP_NEED_MBSTATE_T if mbstate_t is not in wchar.h | |
468 | dnl Define _GLIBCPP_HAS_WCHAR_MIN_MAX if WCHAR_MIN, WCHAR_MAX in wchar.h | |
469 | dnl | |
470 | dnl GLIBCPP_CHECK_WCHAR_T_SUPPORT | |
471 | AC_DEFUN(GLIBCPP_CHECK_WCHAR_T_SUPPORT, [ | |
472 | AC_CHECK_HEADER(wchar.h,[ | |
473 | dnl Test wchar.h for mbstate_t, which is needed for char_traits and others. | |
474 | AC_MSG_CHECKING([for native mbstate_t]) | |
475 | AC_TRY_COMPILE([#include <wchar.h>], | |
476 | [mbstate_t teststate;], | |
477 | use_native_mbstatet=yes, use_native_mbstatet=no) | |
478 | AC_MSG_RESULT($use_native_mbstatet) | |
479 | if test $use_native_mbstatet = "no"; then | |
480 | AC_DEFINE(_GLIBCPP_NEED_MBSTATE_T) | |
481 | fi | |
482 | ||
483 | dnl Test wchar.h for WCHAR_MIN, WCHAR_MAX, which is needed before | |
484 | dnl numeric_limits can instantiate type_traits<wchar_t> | |
485 | AC_MSG_CHECKING([for WCHAR_MIN and WCHAR_MAX]) | |
486 | AC_TRY_COMPILE([#include <wchar.h>], | |
487 | [int i = WCHAR_MIN; int j = WCHAR_MAX;], | |
488 | has_wchar_minmax=yes, has_wchar_minmax=no) | |
489 | AC_MSG_RESULT($has_wchar_minmax) | |
490 | if test $has_wchar_minmax = "yes"; then | |
491 | AC_DEFINE(_GLIBCPP_HAS_WCHAR_MIN_MAX) | |
492 | fi | |
493 | ||
494 | # Test wchar.h for WEOF, which is what we use to determine whether | |
495 | # to specialize for wchar_t or not. | |
496 | AC_MSG_CHECKING([for WEOF]) | |
497 | AC_TRY_COMPILE([ | |
498 | #include <wchar.h> | |
499 | #include <stddef.h>], | |
500 | [wint_t i = WEOF;], | |
501 | has_weof=yes, has_weof=no) | |
502 | AC_MSG_RESULT($has_weof) | |
503 | ||
504 | dnl Tests for wide character functions. | |
505 | AC_REPLACE_STRINGFUNCS(wcslen wmemchr wmemcmp wmemcpy wmemmove wmemset) | |
5d89258a | 506 | AC_SUBST(libinst_wstring_la) |
b2dad0e3 BK |
507 | |
508 | AC_MSG_CHECKING([for wide character support]) | |
509 | if test $has_weof = "yes" && test $has_wchar_minmax = "yes"; then | |
5d89258a | 510 | libinst_wstring_la="libinst-wstring.la" |
b2dad0e3 BK |
511 | AC_DEFINE(_GLIBCPP_USE_WCHAR_T) |
512 | AC_MSG_RESULT(ok) | |
513 | else | |
5d89258a | 514 | libinst_wstring_la="" |
b2dad0e3 BK |
515 | AC_MSG_RESULT("not specializing for wchar_t") |
516 | fi | |
517 | ],[ | |
518 | AC_MSG_WARN([<wchar.h> not found]) | |
519 | AC_DEFINE(_GLIBCPP_NEED_MBSTATE_T) | |
520 | ]) | |
521 | ]) | |
522 | ||
523 | ||
524 | dnl | |
525 | dnl Check to see if this version of GNU C++ is afflicted by bugs in | |
526 | dnl __complex__ float support. | |
527 | dnl | |
528 | dnl Define _GLIBCPP_BUGGY_FLOAT_COMPLEX if buggy. | |
529 | dnl | |
530 | dnl GLIBCPP_CHECK_COMPLEX_FLOAT_SUPPORT | |
531 | AC_DEFUN(GLIBCPP_CHECK_COMPLEX_FLOAT_SUPPORT, [ | |
532 | AC_REQUIRE([AC_PROG_CXX]) | |
533 | AC_MSG_CHECKING([for GNU C++ __complex__ float support]) | |
534 | AC_CACHE_VAL(glibcpp_cv_float_complex, [ | |
535 | AC_LANG_SAVE | |
536 | AC_LANG_CPLUSPLUS | |
537 | rm -f conftest.h | |
538 | cat > conftest.h <<EOB | |
539 | // | |
540 | // Check for buggy __complex__ that causes ICE in most versions of egcs | |
541 | // and gcc-2.95.x on certain platforms (eg., x86-win32). | |
542 | // | |
543 | // See http://egcs.cygnus.com/ml/gcc-bugs/1999-07/msg00845.html for | |
544 | // more info on the bug itself. | |
545 | // | |
546 | struct | |
547 | float_complex | |
548 | { | |
549 | __complex__ float m_value; | |
550 | float_complex (float = 0.0f, float = 0.0f); | |
551 | float_complex (__complex__ float val) : m_value (val) {} | |
552 | float_complex foo (const float_complex &val) | |
553 | { return float_complex (~val.m_value); } | |
554 | }; | |
555 | EOB | |
556 | AC_TRY_COMPILE([#include "conftest.h"], , | |
557 | glibcpp_cv_float_complex=ok, | |
558 | glibcpp_cv_float_complex=buggy | |
559 | ) | |
560 | AC_LANG_RESTORE | |
561 | ]) | |
562 | AC_MSG_RESULT($glibcpp_cv_float_complex) | |
563 | if test $glibcpp_cv_float_complex = buggy; then | |
564 | AC_DEFINE(_GLIBCPP_BUGGY_FLOAT_COMPLEX) | |
565 | fi | |
566 | ]) | |
567 | ||
568 | ||
569 | dnl | |
570 | dnl | |
571 | dnl Check to see if this version of GNU C++ is afflicted by bugs in | |
572 | dnl __complex__ support.Check for buggy __complex__ that will cause ICE in | |
573 | dnl gcc-2.95.x when using the library, unless we define the default copy | |
574 | dnl ctor in the specializations of complex<>. | |
575 | dnl | |
576 | dnl Define _GLIBCPP_BUGGY_COMPLEX if buggy. | |
577 | dnl | |
578 | dnl GLIBCPP_CHECK_COMPLEX_SUPPORT | |
579 | AC_DEFUN(GLIBCPP_CHECK_COMPLEX_SUPPORT, [ | |
580 | AC_REQUIRE([AC_PROG_CXX]) | |
581 | AC_MSG_CHECKING([for GNU C++ __complex__ support]) | |
582 | AC_CACHE_VAL(glibcpp_cv_complex, [ | |
583 | AC_LANG_SAVE | |
584 | AC_LANG_CPLUSPLUS | |
585 | AC_TRY_COMPILE([struct dcomplex { __complex__ double x; }; \ | |
586 | dcomplex f(const dcomplex& x) { return dcomplex(x); }], \ | |
587 | [ dcomplex x; f(x); ], | |
588 | glibcpp_cv_complex=ok, | |
589 | glibcpp_cv_complex=buggy | |
590 | ) | |
591 | AC_LANG_RESTORE | |
592 | ]) | |
593 | AC_MSG_RESULT($glibcpp_cv_complex) | |
594 | if test $glibcpp_cv_complex = buggy; then | |
595 | AC_DEFINE(_GLIBCPP_BUGGY_COMPLEX) | |
596 | fi | |
597 | ]) | |
598 | ||
599 | ||
600 | dnl | |
601 | dnl Check for certain special build configurations. | |
602 | dnl | |
603 | dnl GLIBCPP_ENABLE_DEBUG | |
604 | dnl --enable-debug sets '-ggdb -O0'. | |
605 | dnl --disable-debug sets '-g' and whatever optimization options the | |
606 | dnl compiler can handle. | |
607 | dnl + Perhaps --enable-maintainer-mode should automatically turn this on? | |
608 | dnl + Perhaps -D/-U of NDEBUG, DEBUG, DEBUG_ASSERT, ...? | |
609 | dnl + Usage: GLIBCPP_ENABLE_DEBUG[(DEFAULT)] | |
610 | dnl Where DEFAULT is either `yes' or `no'. If ommitted, it | |
611 | dnl defaults to `no'. | |
612 | AC_DEFUN(GLIBCPP_ENABLE_DEBUG, [dnl | |
613 | define([GLIBCPP_ENABLE_DEBUG_DEFAULT], ifelse($1, yes, yes, no))dnl | |
614 | AC_ARG_ENABLE(debug, | |
615 | changequote(<<, >>)dnl | |
616 | << --enable-debug extra debugging, turn off optimization [default=>>GLIBCPP_ENABLE_DEBUG_DEFAULT], | |
617 | changequote([, ])dnl | |
618 | [case "$enableval" in | |
619 | yes) enable_debug=yes ;; | |
620 | no) enable_debug=no ;; | |
621 | *) AC_MSG_ERROR([Unknown argument to enable/disable extra debugging]) ;; | |
622 | esac], | |
623 | enable_debug=GLIBCPP_ENABLE_DEBUG_DEFAULT)dnl | |
624 | dnl Option parsed, now set things appropriately | |
625 | case "$enable_debug" in | |
cde28f0d BK |
626 | yes) |
627 | DEBUGFLAGS='-O0 -ggdb' | |
628 | ;; | |
f3b004d8 BK |
629 | no) |
630 | DEBUGFLAGS='-g' | |
631 | ;; | |
b2dad0e3 BK |
632 | esac |
633 | AC_SUBST(DEBUGFLAGS) | |
634 | ]) | |
635 | ||
636 | ||
dcfa0bc8 PE |
637 | dnl |
638 | dnl Check for "unusual" flags to pass to the compiler while building. | |
639 | dnl | |
640 | dnl GLIBCPP_ENABLE_CXX_FLAGS | |
641 | dnl --enable-cxx-flags='-foo -bar -baz' is a general method for passing | |
642 | dnl experimental flags such as -fhonor-std, -fsquangle, -Dfloat=char, etc. | |
643 | dnl Somehow this same set of flags must be passed when [re]building | |
644 | dnl libgcc. | |
645 | dnl --disable-cxx-flags passes nothing. | |
646 | dnl + See <URL:> | |
647 | dnl + Usage: GLIBCPP_ENABLE_CXX_FLAGS(default flags) | |
648 | dnl If "default flags" is an empty string, the effect is the same | |
649 | dnl as --disable or --enable=no. | |
650 | AC_DEFUN(GLIBCPP_ENABLE_CXX_FLAGS, [dnl | |
651 | define([GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT], ifelse($1,,, $1))dnl | |
652 | AC_ARG_ENABLE(cxx-flags, | |
653 | changequote(<<, >>)dnl | |
654 | << --enable-cxx-flags=FLAGS pass compiler FLAGS when building library; | |
655 | [default=>>GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT], | |
656 | changequote([, ])dnl | |
657 | [case "x$enableval" in | |
658 | xyes) AC_MSG_ERROR([--enable-cxx-flags needs compiler flags as arguments]) ;; | |
659 | xno|x) enable_cxx_flags= ;; | |
660 | *) enable_cxx_flags="$enableval" ;; | |
661 | esac], | |
662 | enable_cxx_flags='GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT')dnl | |
663 | dnl Run through flags (either default or command-line) and set things. | |
664 | if test -n "$enable_cxx_flags"; then | |
665 | for f in $enable_cxx_flags; do | |
666 | case "$f" in | |
667 | -fhonor-std) AC_DEFINE(_GLIBCPP_USE_NAMESPACES) ;; | |
668 | -*) ;; | |
669 | *) # and we're trying to pass /what/ exactly? | |
670 | AC_MSG_ERROR([compiler flags start with a -]) ;; | |
671 | esac | |
672 | done | |
673 | fi | |
674 | EXTRA_CXX_FLAGS="$enable_cxx_flags" | |
675 | AC_SUBST(EXTRA_CXX_FLAGS) | |
676 | ]) | |
677 | ||
678 | ||
b2dad0e3 BK |
679 | dnl |
680 | dnl Check for certain special build configurations. | |
681 | dnl | |
682 | dnl GLIBCPP_ENABLE_NAMESPACES | |
683 | dnl --enable-namespaces sets '-fhonor-std' and defines _GLIBCPP_USE_NAMESPACES | |
684 | dnl --disable-namespaces sets '-fno-honor-std' (the macro should be | |
685 | dnl undefined by default in whatever.h.in). | |
686 | dnl + Eventually, this will go away. | |
687 | dnl + Usage: GLIBCPP_ENABLE_NAMESPACES[(DEFAULT)] | |
688 | dnl Where DEFAULT is either `yes' or `no'. If ommitted, it | |
689 | dnl defaults to `no'. | |
690 | AC_DEFUN(GLIBCPP_ENABLE_NAMESPACES, [dnl | |
691 | define([GLIBCPP_ENABLE_NAMESPACES_DEFAULT], ifelse($1, yes, yes, no))dnl | |
692 | AC_ARG_ENABLE(namespaces, | |
693 | changequote(<<, >>)dnl | |
694 | << --enable-namespaces turns on 'std' [default=>>GLIBCPP_ENABLE_NAMESPACES_DEFAULT], | |
695 | changequote([, ])dnl | |
696 | [case "$enableval" in | |
697 | yes) enable_namespaces=yes ;; | |
698 | no) enable_namespaces=no ;; | |
699 | *) AC_MSG_ERROR([Unknown argument to enable/disable namespaces]) ;; | |
700 | esac], | |
701 | enable_namespaces=GLIBCPP_ENABLE_NAMESPACES_DEFAULT)dnl | |
702 | dnl Option parsed, now set things appropriately | |
703 | case "$enable_namespaces" in | |
704 | yes) NAMESPACES='-fhonor-std' | |
705 | AC_DEFINE(_GLIBCPP_USE_NAMESPACES) | |
706 | ;; | |
707 | no) NAMESPACES='-fno-honor-std' | |
708 | ;; | |
709 | esac | |
710 | AC_SUBST(NAMESPACES) | |
711 | ]) | |
712 | ||
713 | ||
714 | dnl | |
715 | dnl Check for instructions to automatically rebuild libgcc.a. Requires, | |
716 | dnl of course, the location of the gcc objdir. Note that if --disable- | |
717 | dnl namespaces is in effect, rebuilding libgcc.a is an expensive no-op. | |
718 | dnl | |
719 | dnl GLIBCPP_ENABLE_RELIBGCC | |
720 | dnl --enable-libgcc-rebuild=/absolute/path/to/gcc/objdir sets GCC_OBJDIR | |
721 | dnl (presumably in the top-level Makefile) to /absol.../objdir | |
722 | dnl --disable-libgcc-rebuild will not touch libgcc.a at all (maybe print | |
723 | dnl a warning if this is given along with --enable-namespaces), by | |
724 | dnl setting GCC_OBJDIR to `no'. | |
725 | dnl + Doing this by default is going to be interesting. What default | |
726 | dnl "on" value can there be? | |
727 | dnl + Usage: GLIBCPP_ENABLE_RELIBGCC[(DEFAULT)] | |
728 | dnl The default path should be ../.. if bundled with GCC source. | |
729 | dnl If ommitted, it defaults to `no'. | |
730 | dnl | |
731 | AC_DEFUN(GLIBCPP_ENABLE_RELIBGCC, [dnl | |
732 | define([GLIBCPP_ENABLE_RELIBGCC_DEFAULT], ifelse($1,, no, $1))dnl | |
733 | AC_ARG_ENABLE(libgcc-rebuild, | |
734 | changequote(<<, >>)dnl | |
735 | << --enable-libgcc-rebuild=DIR also rebuild libgcc.a; DIR is | |
736 | the GCC objdir; see install.html>>, | |
737 | changequote([, ])dnl | |
738 | [case "$enableval" in | |
739 | yes) AC_MSG_ERROR([--enable-libgcc-rebuild needs a pathname]) ;; | |
740 | no) enable_libgcc_rebuild=no ;; | |
741 | *) if test -d "$enableval" && test -d "${enableval}/gcc" && \ | |
742 | test -d "${enableval}/libiberty" | |
743 | then | |
744 | enable_libgcc_rebuild="$enableval" | |
745 | else | |
746 | AC_MSG_ERROR(["$enableval" does not appear to be the GCC objdir]) | |
747 | fi | |
748 | ;; | |
749 | esac], | |
750 | enable_libgcc_rebuild=GLIBCPP_ENABLE_RELIBGCC_DEFAULT)dnl | |
751 | GCC_OBJDIR="$enable_libgcc_rebuild" | |
752 | AC_SUBST(GCC_OBJDIR) | |
753 | ]) | |
754 | ||
755 | ||
756 | dnl | |
757 | dnl Check for certain special build configurations. | |
758 | dnl | |
759 | dnl GLIBCPP_ENABLE_CSTDIO | |
760 | dnl --enable-cstdio=libio sets config/c_io_libio.h and friends | |
761 | dnl | |
762 | dnl default is libio | |
763 | dnl | |
764 | AC_DEFUN(GLIBCPP_ENABLE_CSTDIO, [ | |
765 | AC_MSG_CHECKING([for cstdio to use]) | |
766 | AC_ARG_ENABLE(cstdio, | |
767 | [ --enable-cstdio enable GNU libio for target io package. (default) | |
768 | --enable-cstdio=LIB use LIB target-speific io package.], | |
769 | if test x$enable_cstdio = xno; then | |
770 | enable_cstdio=libio | |
771 | fi, | |
772 | enable_cstdio=libio) | |
773 | ||
774 | enable_cstdio_flag=$enable_cstdio | |
775 | ||
776 | dnl Check if a valid thread package | |
777 | case x${enable_cstdio_flag} in | |
778 | xlibio | x | xno | xnone | xyes) | |
779 | # default | |
780 | CSTDIO_H=c_io_libio.h | |
781 | CSTDIO_CC=c_io_libio.cc | |
782 | AC_MSG_RESULT(libio) | |
783 | ||
784 | # see if we are on a system with libio native (ie, linux) | |
785 | AC_CHECK_HEADER(libio.h, has_libio=yes, has_libio=no) | |
786 | if test $has_libio = "yes"; then | |
787 | BUILD_LIBIO_INCLUDE= | |
788 | need_libio=no | |
789 | else | |
790 | BUILD_LIBIO_INCLUDE='-I../libio' | |
791 | need_libio=yes | |
792 | fi | |
793 | AC_SUBST(BUILD_LIBIO_INCLUDE) | |
f3b004d8 BK |
794 | |
795 | # see if the _G_config.h header needs to be built. | |
796 | # NB: This replaces the _G_CONFIG_H machinery in libio-v2 | |
797 | AC_CHECK_HEADER(_G_config.h, has_gconf_h=yes, has_gconf_h=no) | |
798 | AM_CONDITIONAL(GLIBCPP_NEED_LIBIO_CONFIG_H, test "$has_gconf_h" = no) | |
b2dad0e3 BK |
799 | ;; |
800 | xwince) | |
801 | CSTDIO_H=c_io_wince.h | |
802 | CSTDIO_CC=c_io_wince.cc | |
803 | AC_MSG_RESULT(wince) | |
804 | ||
805 | need_libio=no | |
806 | BUILD_LIBIO_INCLUDE= | |
807 | AC_SUBST(BUILD_LIBIO_INCLUDE) | |
808 | ;; | |
809 | *) | |
810 | echo "$enable_cstdio is an unknown io package" 1>&2 | |
811 | exit 1 | |
812 | ;; | |
813 | esac | |
814 | AC_SUBST(CSTDIO_H) | |
815 | AC_SUBST(CSTDIO_CC) | |
816 | AM_CONDITIONAL(GLIBCPP_NEED_LIBIO, test "$need_libio" = yes) | |
817 | ]) | |
818 | ||
819 | ||
820 | dnl | |
821 | dnl Check for certain special build configurations. | |
822 | dnl | |
823 | dnl GLIBCPP_ENABLE_THREADS | |
824 | dnl --enable-threads=posix sets config/threads-posix.h et. al. | |
825 | dnl | |
826 | dnl default is no threads | |
827 | dnl | |
828 | AC_DEFUN(GLIBCPP_ENABLE_THREADS, [ | |
829 | dnl Note this comes from the gcc/config.in and libjava/config.in | |
830 | dnl Efforts should be made to keep this in sync. | |
831 | AC_MSG_CHECKING([for threads package to use]) | |
832 | AC_ARG_ENABLE(threads, | |
833 | [ --enable-threads enable thread usage for target GCC. | |
834 | --enable-threads=LIB use LIB thread package for target GCC.], | |
835 | if test x$enable_threads = xno; then | |
836 | enable_threads='' | |
837 | fi, | |
838 | enable_threads='') | |
839 | ||
840 | enable_threads_flag=$enable_threads | |
841 | ||
842 | dnl Check if a valid thread package | |
843 | case x${enable_threads_flag} in | |
844 | x | xno | xnone) | |
845 | # No threads | |
846 | target_thread_file='single' | |
847 | ;; | |
848 | xyes) | |
849 | # default | |
850 | target_thread_file='' | |
851 | ;; | |
852 | xdecosf1 | xirix | xmach | xos2 | xposix | xpthreads | xsingle | \ | |
853 | xsolaris | xwin32 | xdce | xvxworks) | |
854 | target_thread_file=$enable_threads_flag | |
855 | ;; | |
856 | *) | |
857 | echo "$enable_threads is an unknown thread package" 1>&2 | |
858 | exit 1 | |
859 | ;; | |
860 | esac | |
861 | ||
862 | dnl Check for thread package actually supported in libstdc++ | |
863 | case "$target_thread_file" in | |
864 | no | none | single) | |
865 | THREADS=none | |
866 | ;; | |
867 | posix | pthreads) | |
868 | THREADS=posix | |
869 | case "$host" in | |
870 | *-*-linux*) | |
871 | ;; | |
872 | esac | |
873 | ;; | |
874 | decosf1 | irix | mach | os2 | solaris | win32 | dce | vxworks) | |
875 | AC_MSG_ERROR(thread package $THREADS not yet supported) | |
876 | ;; | |
877 | *) | |
878 | AC_MSG_ERROR($THREADS is an unknown thread package) | |
879 | ;; | |
880 | esac | |
881 | AC_MSG_RESULT($THREADS) | |
882 | ||
883 | THREADLIBS= | |
884 | THREADINCS= | |
885 | THREADDEPS= | |
886 | THREADOBJS= | |
887 | THREADH= | |
888 | THREADSPEC= | |
889 | case "$THREADS" in | |
890 | posix) | |
891 | AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=]) | |
892 | THREADLIBS=-lpthread | |
893 | THREADSPEC=-lpthread | |
894 | dnl Not presently used | |
895 | dnl THREADOBJS=threads-posix.lo | |
896 | THREADH=threads-posix.h | |
897 | ;; | |
898 | none) | |
899 | dnl Not presently used | |
900 | dnl THREADOBJS=threads-no.lo | |
901 | THREADH=threads-no.h | |
902 | ;; | |
903 | esac | |
904 | AC_SUBST(THREADLIBS) | |
905 | AC_SUBST(THREADINCS) | |
906 | AC_SUBST(THREADDEPS) | |
907 | AC_SUBST(THREADOBJS) | |
908 | AC_SUBST(THREADSPEC) | |
909 | ]) | |
910 | ||
911 | ||
912 | dnl | |
913 | dnl Check for certain special build configurations. | |
914 | dnl | |
915 | dnl GLIBCPP_ENABLE_LONG_LONG | |
916 | dnl --enable-long-long defines _GLIBCPP_USE_LONG_LONG | |
917 | dnl --disable-long-long leaves _GLIBCPP_USE_LONG_LONG undefined | |
918 | dnl + Usage: GLIBCPP_ENABLE_LONG_LONG[(DEFAULT)] | |
919 | dnl Where DEFAULT is either `yes' or `no'. If ommitted, it | |
920 | dnl defaults to `no'. | |
921 | dnl | |
922 | dnl GLIBCPP_ENABLE_LONG_LONG | |
923 | AC_DEFUN(GLIBCPP_ENABLE_LONG_LONG, [dnl | |
924 | define([GLIBCPP_ENABLE_LONG_LONG_DEFAULT], ifelse($1, yes, yes, no))dnl | |
925 | AC_ARG_ENABLE(long-long, | |
926 | changequote(<<, >>)dnl | |
927 | <<--enable-long_long turns on 'long long' [default=>>GLIBCPP_ENABLE_LONG_LONG_DEFAULT], | |
928 | changequote([, ])dnl | |
929 | [case "$enableval" in | |
930 | yes) enable_long_long=yes ;; | |
931 | no) enable_long_long=no ;; | |
932 | *) AC_MSG_ERROR([Unknown argument to enable/disable long long]) ;; | |
933 | esac], | |
934 | enable_long_long=GLIBCPP_ENABLE_LONG_LONG_DEFAULT)dnl | |
935 | dnl Option parsed, now set things appropriately | |
936 | case "$enable_long_long" in | |
937 | yes) AC_DEFINE(_GLIBCPP_USE_LONG_LONG) | |
938 | ;; | |
939 | esac | |
940 | ]) | |
941 | ||
942 | ||
943 | ||
944 | ||
945 | ||
946 | ||
947 | ||
948 | ||
949 | ||
950 | ||
951 | ||
952 |